Java Vector

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Vector are array list with extended properties which follow the dynamic and automatic addition of data at run-time.

Java Vector

Introduction to Vector

Vector are array list with extended properties which follow the dynamic and
automatic addition of data at run-time. Unlike array, Vector can grow and
shrink as needed to accommodate its size adding and removing items even after
the Vector has been created. The Vector class
implements dynamic array of objects. The Component in vector class can be
accessed by integer index. Each vector tries to maintain its storage size
by capacity and a capacity Increment. The capacity
of vector is always least as of its size and usually larger because
components are added to the vector at run-time. The vector's storage get
increase in chunks as the size of capacity Increment. An
application increase the size of a vector before inserting a large number of
components that is used to reduce the amount of increment in reallocation. Vectors
can be easily used.. It implement the Enumeration interface which makes
the contents of a Vector traversed

Vector instances are like linked-lists that can grow dynamically. Once it
reaches the maximum limit, resources are allocated dynamically and increases its
size further.

How to declare Vector

Vector

The given below Syntax is used to declare an empty vector so that the size
of internal data array has 10 and its standard storage capacity has zero.

public Vector()

The given Syntax is used to construct an empty vector specified by initial capacity.

vector(int initial capacity)

The below Syntax Creates an empty vector with the specified initial capacity and capacity increment.

vector(int initial capacity,int capacity increment)

Method used in Vector

void add(int index, Object element)- Inserts
the specified element at the specified position in this Vector

.
boolean add(object o)- Appends the specified element to the end of
this Vector.

int capacity( ) - Return the current capacity of this
vector

void clear( )- Removes all of the elements from this Vector.

void setsize(int new size )-Set the new size of Vector.

int size( )-Return the number of Component in Vector.

Vector trim to size( )- Trim the Capacity of Vector to vector's current size.

public int lastindexof(obj abc)-Returns the occurrence of last index of of
the specified object in this vector.

Understand Vector by Example-

This java example shows us to
find a maximum element of Java Vector using max method of Collections class. We
Import required package, then declare a Class name maximum vector element
.Inside the main method create an object of vector. The object of vector
class calls add method to add the component of vector. In order to find
the maximum element of vector component use, static object max(collection
c) method of collection class which we already imported the Collection
package .This
method returns the maximum element of Java Vector.

c.ragupathi
December 3, 2011
hi solve this
how can i solve this problem:
Exception in thread"AWT-EventQueue-0" java.lang.UnsupportedClassVersionError:s
impleProtector:Unsupported major-minor Version 51.0